I was at Barking on Saturday afternoon and a Goblin train reversed on platform 7 which would be the route to the extension.
I've only experienced this in the PM peak when it took ages for everyone to get off a terminating GOBLIN train. It then headed to the reversing track. In the meantime it had delayed a C2C train and when it eventually arrived it was then caught again because of the reversing GOBLIN. I can't imagine C2C being happy about that if it happens regularly. That is partly what prompted my earlier remarks about TfL taking a pessimistic view. I think it's the case that C2C and freight companies have expressed concern to the Inspector responsible for assessing the TWA application from TfL to build the extension. If it goes ahead then we can guarantee that whenever Arriva London Rail apply for track access east of Barking that C2C and the Freight Operators will all object to the application and demand compensation (this seems to be standard industry practice) because of the risk of delays to their services / impingement on their existing running rights.
The C2C service is poor for much of the day. Every 30 minutes is not enough.
An interesting little snippet from a recent Mayor's Answer about the Barking Riverside extension. I had not spotted that the extension is effectively capped at 4 tph because of capacity constraints on the C2C line from Barking. This also means that if 5 tph were adopted on the GOBLIN 1 tph would have to turn at Barking giving an uneven headway to / from Riverside or else an odd headway from Barking to Gospel Oak with the fifth train squashed between a regular 4 tph pattern. How silly.
Barking to Gospel Oak London Overground Line (1) Question No: 2017/0472 Caroline Pidgeon
In your answer to Question 2016/4102, you stated that four trains per hour would be the maximum that could run on the Barking Riverside extension. One of the options TfL is looking at for the Gospel Oak - Barking Line is 5 trains per hour in 2020. Would this leave Barking Riverside with an irregular service? Please also state what plans TfL have to deal with passenger demand at Barking Riverside growing to exceed the capacity of the planned four train per hour service?
The service between Barking and Barking Riverside will be limited to four trains per hour as this is the maximum that can currently be accommodated alongside the c2c services with which it will share tracks. This means that the trains to Barking Riverside could run at a different service interval than the Gospel Oak to Barking line. TfL will continue to review options for the timetable with c2c and Network Rail.
According to current housing projections, four trains per hour to Barking Riverside would provide sufficient capacity. However, TfL continuously reviews passenger demand across the network and plans service improvements to meet demand, and will do the same for Barking Riverside.